Commercial truck insurance is a type of insurance that is specifically designed for businesses that operate commercial trucks, such as delivery trucks, semi-trucks, and other types of heavy vehicles. This type of insurance is essential for businesses that rely on these vehicles to transport goods and materials, as it helps protect against financial loss in the event of an accident or other mishap.

There are several types of companies that need commercial truck insurance, including:

1. Delivery companies: Businesses that rely on delivery trucks to transport goods and packages will need commercial truck insurance to protect against the potential for accidents and damage to the vehicles. This includes companies that do home deliveries, food delivery, and other types of deliveries.
2. Construction companies: Businesses that use commercial trucks to transport equipment and materials to construction sites will need commercial truck insurance to protect against financial loss in the event of an accident or damage to the vehicles. This includes companies that specialize in construction, demolition, and excavations.
3. Manufacturing companies: Businesses that use commercial trucks to transport raw materials and finished products will need commercial truck insurance to protect against financial loss in the event of an accident or damage to the vehicles. This includes companies that manufacture goods, assemble products, or process materials.
4. Wholesale and retail companies: Businesses that use commercial trucks to transport goods to and from warehouses and retail locations will need commercial truck insurance to protect against financial loss in the event of an accident or damage to the vehicles. This includes companies that sell goods to other businesses or the general public.
5. Freight and logistics companies: Businesses that transport freight and other goods on behalf of other companies will need commercial truck insurance to protect against financial loss in the event of an accident or damage to the vehicles. This includes companies that provide transportation and logistics services for other businesses. 
6. Agricultural companies: Businesses that use commercial trucks to transport agricultural products such as crops, livestock and other farming related materials will need commercial truck insurance to protect against financial loss in the event of an accident or damage to the vehicles.

In summary, any company that operates commercial trucks need commercial truck insurance to protect against financial loss in the event of an accident or damage to the vehicles. Not having commercial truck insurance can lead to costly lawsuits and financial ruin for the company. It is important to carefully review the coverage options and select a policy that meets the specific needs of your business.